blob: e5370056922212e2820ef8e8a4eb629891466017 [file] [log] [blame]
/*
* hostapd / Callback functions for driver wrappers
* Copyright (c) 2002-2009, Jouni Malinen <j@w1.fi>
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
*/
#include "utils/includes.h"
#include "utils/common.h"
#include "radius/radius.h"
#include "drivers/driver.h"
#include "common/ieee802_11_defs.h"
#include "common/ieee802_11_common.h"
#include "crypto/random.h"
#include "p2p/p2p.h"
#include "wps/wps.h"
#include "wnm_ap.h"
#include "hostapd.h"
#include "ieee802_11.h"
#include "sta_info.h"
#include "accounting.h"
#include "tkip_countermeasures.h"
#include "ieee802_1x.h"
#include "wpa_auth.h"
#include "wps_hostapd.h"
#include "ap_drv_ops.h"
#include "ap_config.h"
#include "hw_features.h"
#include "beacon.h"
int hostapd_notif_assoc(struct hostapd_data *hapd, const u8 *addr,
const u8 *req_ies, size_t req_ies_len, int reassoc)
{
struct sta_info *sta;
int new_assoc, res;
struct ieee802_11_elems elems;
const u8 *ie;
size_t ielen;
#ifdef CONFIG_IEEE80211R
u8 buf[sizeof(struct ieee80211_mgmt) + 1024];
u8 *p = buf;
#endif /* CONFIG_IEEE80211R */
u16 reason = WLAN_REASON_UNSPECIFIED;
u16 status = WLAN_STATUS_SUCCESS;
if (addr == NULL) {
/*
* This could potentially happen with unexpected event from the
* driver wrapper. This was seen at least in one case where the
* driver ended up being set to station mode while hostapd was
* running, so better make sure we stop processing such an
* event here.
*/
wpa_printf(MSG_DEBUG, "hostapd_notif_assoc: Skip event with "
"no address");
return -1;
}
random_add_randomness(addr, ETH_ALEN);
hostapd_logger(hapd, addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_INFO, "associated");
ieee802_11_parse_elems(req_ies, req_ies_len, &elems, 0);
if (elems.wps_ie) {
ie = elems.wps_ie - 2;
ielen = elems.wps_ie_len + 2;
wpa_printf(MSG_DEBUG, "STA included WPS IE in (Re)AssocReq");
} else if (elems.rsn_ie) {
ie = elems.rsn_ie - 2;
ielen = elems.rsn_ie_len + 2;
wpa_printf(MSG_DEBUG, "STA included RSN IE in (Re)AssocReq");
} else if (elems.wpa_ie) {
ie = elems.wpa_ie - 2;
ielen = elems.wpa_ie_len + 2;
wpa_printf(MSG_DEBUG, "STA included WPA IE in (Re)AssocReq");
} else {
ie = NULL;
ielen = 0;
wpa_printf(MSG_DEBUG, "STA did not include WPS/RSN/WPA IE in "
"(Re)AssocReq");
}
sta = ap_get_sta(hapd, addr);
if (sta) {
accounting_sta_stop(hapd, sta);
/*
* Make sure that the previously registered inactivity timer
* will not remove the STA immediately.
*/
sta->timeout_next = STA_NULLFUNC;
} else {
sta = ap_sta_add(hapd, addr);
if (sta == NULL) {
hostapd_drv_sta_disassoc(hapd, addr,
WLAN_REASON_DISASSOC_AP_BUSY);
return -1;
}
}
sta->flags &= ~(WLAN_STA_WPS | WLAN_STA_MAYBE_WPS | WLAN_STA_WPS2);
#ifdef CONFIG_P2P
if (elems.p2p) {
wpabuf_free(sta->p2p_ie);
sta->p2p_ie = ieee802_11_vendor_ie_concat(req_ies, req_ies_len,
P2P_IE_VENDOR_TYPE);
}
#endif /* CONFIG_P2P */
#ifdef CONFIG_HS20
wpabuf_free(sta->hs20_ie);
if (elems.hs20 && elems.hs20_len > 4) {
sta->hs20_ie = wpabuf_alloc_copy(elems.hs20 + 4,
elems.hs20_len - 4);
} else
sta->hs20_ie = NULL;
#endif /* CONFIG_HS20 */
if (hapd->conf->wpa) {
if (ie == NULL || ielen == 0) {
#ifdef CONFIG_WPS
if (hapd->conf->wps_state) {
wpa_printf(MSG_DEBUG, "STA did not include "
"WPA/RSN IE in (Re)Association "
"Request - possible WPS use");
sta->flags |= WLAN_STA_MAYBE_WPS;
goto skip_wpa_check;
}
#endif /* CONFIG_WPS */
wpa_printf(MSG_DEBUG, "No WPA/RSN IE from STA");
return -1;
}
#ifdef CONFIG_WPS
if (hapd->conf->wps_state && ie[0] == 0xdd && ie[1] >= 4 &&
os_memcmp(ie + 2, "\x00\x50\xf2\x04", 4) == 0) {
struct wpabuf *wps;
sta->flags |= WLAN_STA_WPS;
wps = ieee802_11_vendor_ie_concat(ie, ielen,
WPS_IE_VENDOR_TYPE);
if (wps) {
if (wps_is_20(wps)) {
wpa_printf(MSG_DEBUG, "WPS: STA "
"supports WPS 2.0");
sta->flags |= WLAN_STA_WPS2;
}
wpabuf_free(wps);
}
goto skip_wpa_check;
}
#endif /* CONFIG_WPS */
if (sta->wpa_sm == NULL)
sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth,
sta->addr);
if (sta->wpa_sm == NULL) {
wpa_printf(MSG_ERROR, "Failed to initialize WPA state "
"machine");
return -1;
}
res = wpa_validate_wpa_ie(hapd->wpa_auth, sta->wpa_sm,
ie, ielen,
elems.mdie, elems.mdie_len);
if (res != WPA_IE_OK) {
wpa_printf(MSG_DEBUG, "WPA/RSN information element "
"rejected? (res %u)", res);
wpa_hexdump(MSG_DEBUG, "IE", ie, ielen);
if (res == WPA_INVALID_GROUP) {
reason = WLAN_REASON_GROUP_CIPHER_NOT_VALID;
status = WLAN_STATUS_GROUP_CIPHER_NOT_VALID;
} else if (res == WPA_INVALID_PAIRWISE) {
reason = WLAN_REASON_PAIRWISE_CIPHER_NOT_VALID;
status = WLAN_STATUS_PAIRWISE_CIPHER_NOT_VALID;
} else if (res == WPA_INVALID_AKMP) {
reason = WLAN_REASON_AKMP_NOT_VALID;
status = WLAN_STATUS_AKMP_NOT_VALID;
}
#ifdef CONFIG_IEEE80211W
else if (res == WPA_MGMT_FRAME_PROTECTION_VIOLATION) {
reason = WLAN_REASON_INVALID_IE;
status = WLAN_STATUS_INVALID_IE;
} else if (res == WPA_INVALID_MGMT_GROUP_CIPHER) {
reason = WLAN_REASON_GROUP_CIPHER_NOT_VALID;
status = WLAN_STATUS_GROUP_CIPHER_NOT_VALID;
}
#endif /* CONFIG_IEEE80211W */
else {
reason = WLAN_REASON_INVALID_IE;
status = WLAN_STATUS_INVALID_IE;
}
goto fail;
}
#ifdef CONFIG_IEEE80211W
if ((sta->flags & WLAN_STA_MFP) && !sta->sa_query_timed_out &&
sta->sa_query_count > 0)
ap_check_sa_query_timeout(hapd, sta);
if ((sta->flags & WLAN_STA_MFP) && !sta->sa_query_timed_out &&
(sta->auth_alg != WLAN_AUTH_FT)) {
/*
* STA has already been associated with MFP and SA
* Query timeout has not been reached. Reject the
* association attempt temporarily and start SA Query,
* if one is not pending.
*/
if (sta->sa_query_count == 0)
ap_sta_start_sa_query(hapd, sta);
#ifdef CONFIG_IEEE80211R
status = WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY;
p = hostapd_eid_assoc_comeback_time(hapd, sta, p);
hostapd_sta_assoc(hapd, addr, reassoc, status, buf,
p - buf);
#endif /* CONFIG_IEEE80211R */
return 0;
}
if (wpa_auth_uses_mfp(sta->wpa_sm))
sta->flags |= WLAN_STA_MFP;
else
sta->flags &= ~WLAN_STA_MFP;
#endif /* CONFIG_IEEE80211W */
#ifdef CONFIG_IEEE80211R
if (sta->auth_alg == WLAN_AUTH_FT) {
status = wpa_ft_validate_reassoc(sta->wpa_sm, req_ies,
req_ies_len);
if (status != WLAN_STATUS_SUCCESS) {
if (status == WLAN_STATUS_INVALID_PMKID)
reason = WLAN_REASON_INVALID_IE;
if (status == WLAN_STATUS_INVALID_MDIE)
reason = WLAN_REASON_INVALID_IE;
if (status == WLAN_STATUS_INVALID_FTIE)
reason = WLAN_REASON_INVALID_IE;
goto fail;
}
}
#endif /* CONFIG_IEEE80211R */
} else if (hapd->conf->wps_state) {
#ifdef CONFIG_WPS
struct wpabuf *wps;
if (req_ies)
wps = ieee802_11_vendor_ie_concat(req_ies, req_ies_len,
WPS_IE_VENDOR_TYPE);
else
wps = NULL;
#ifdef CONFIG_WPS_STRICT
if (wps && wps_validate_assoc_req(wps) < 0) {
reason = WLAN_REASON_INVALID_IE;
status = WLAN_STATUS_INVALID_IE;
wpabuf_free(wps);
goto fail;
}
#endif /* CONFIG_WPS_STRICT */
if (wps) {
sta->flags |= WLAN_STA_WPS;
if (wps_is_20(wps)) {
wpa_printf(MSG_DEBUG, "WPS: STA supports "
"WPS 2.0");
sta->flags |= WLAN_STA_WPS2;
}
} else
sta->flags |= WLAN_STA_MAYBE_WPS;
wpabuf_free(wps);
#endif /* CONFIG_WPS */
}
#ifdef CONFIG_WPS
skip_wpa_check:
#endif /* CONFIG_WPS */
#ifdef CONFIG_IEEE80211R
p = wpa_sm_write_assoc_resp_ies(sta->wpa_sm, buf, sizeof(buf),
sta->auth_alg, req_ies, req_ies_len);
hostapd_sta_assoc(hapd, addr, reassoc, status, buf, p - buf);
#else /* CONFIG_IEEE80211R */
/* Keep compiler silent about unused variables */
if (status) {
}
#endif /* CONFIG_IEEE80211R */
new_assoc = (sta->flags & WLAN_STA_ASSOC) == 0;
sta->flags |= WLAN_STA_AUTH | WLAN_STA_ASSOC;
if (reassoc && (sta->auth_alg == WLAN_AUTH_FT))
wpa_auth_sm_event(sta->wpa_sm, WPA_ASSOC_FT);
else
wpa_auth_sm_event(sta->wpa_sm, WPA_ASSOC);
hostapd_new_assoc_sta(hapd, sta, !new_assoc);
ieee802_1x_notify_port_enabled(sta->eapol_sm, 1);
#ifdef CONFIG_P2P
if (req_ies) {
p2p_group_notif_assoc(hapd->p2p_group, sta->addr,
req_ies, req_ies_len);
}
#endif /* CONFIG_P2P */
return 0;
fail:
#ifdef CONFIG_IEEE80211R
hostapd_sta_assoc(hapd, addr, reassoc, status, buf, p - buf);
#endif /* CONFIG_IEEE80211R */
hostapd_drv_sta_disassoc(hapd, sta->addr, reason);
ap_free_sta(hapd, sta);
return -1;
}
void hostapd_notif_disassoc(struct hostapd_data *hapd, const u8 *addr)
{
struct sta_info *sta;
if (addr == NULL) {
/*
* This could potentially happen with unexpected event from the
* driver wrapper. This was seen at least in one case where the
* driver ended up reporting a station mode event while hostapd
* was running, so better make sure we stop processing such an
* event here.
*/
wpa_printf(MSG_DEBUG, "hostapd_notif_disassoc: Skip event "
"with no address");
return;
}
hostapd_logger(hapd, addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_INFO, "disassociated");
sta = ap_get_sta(hapd, addr);
if (sta == NULL) {
wpa_printf(MSG_DEBUG, "Disassociation notification for "
"unknown STA " MACSTR, MAC2STR(addr));
return;
}
ap_sta_set_authorized(hapd, sta, 0);
sta->flags &= ~(WLAN_STA_AUTH | WLAN_STA_ASSOC);
wpa_auth_sm_event(sta->wpa_sm, WPA_DISASSOC);
sta->acct_terminate_cause = RADIUS_ACCT_TERMINATE_CAUSE_USER_REQUEST;
ieee802_1x_notify_port_enabled(sta->eapol_sm, 0);
ap_free_sta(hapd, sta);
}
void hostapd_event_sta_low_ack(struct hostapd_data *hapd, const u8 *addr)
{
struct sta_info *sta = ap_get_sta(hapd, addr);
if (!sta || !hapd->conf->disassoc_low_ack)
return;
hostapd_logger(hapd, addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_INFO, "disconnected due to excessive "
"missing ACKs");
hostapd_drv_sta_disassoc(hapd, addr, WLAN_REASON_DISASSOC_LOW_ACK);
if (sta)
ap_sta_disassociate(hapd, sta, WLAN_REASON_DISASSOC_LOW_ACK);
}
void hostapd_event_ch_switch(struct hostapd_data *hapd, int freq, int ht,
int offset)
{
#ifdef NEED_AP_MLME
int channel;
hostapd_logger(hapd, NULL, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_INFO, "driver had channel switch: "
"freq=%d, ht=%d, offset=%d", freq, ht, offset);
//hapd->iface->freq = freq;
channel = hostapd_hw_get_channel(hapd, freq);
if (!channel) {
hostapd_logger(hapd, NULL, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_WARNING, "driver switched to "
"bad channel!");
return;
}
hapd->iconf->channel = channel;
hapd->iconf->ieee80211n = ht;
hapd->iconf->secondary_channel = offset;
if (hapd->iface->freq == freq)
return;
hapd->iface->freq = freq;
if (hostapd_set_freq(hapd, hapd->iconf->hw_mode, freq,
hapd->iconf->channel,
hapd->iconf->ieee80211n,
hapd->iconf->secondary_channel)) {
hostapd_logger(hapd, NULL, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_WARNING,
"failed to update the freq !");
return;
}
hapd->next_channel = NULL;
/* update the DS IE */
ieee802_11_set_beacon(hapd);
wpa_printf(MSG_DEBUG, "AP/GO moved to channel %d", channel);
#endif /* NEED_AP_MLME */
}
int hostapd_probe_req_rx(struct hostapd_data *hapd, const u8 *sa, const u8 *da,
const u8 *bssid, const u8 *ie, size_t ie_len,
int ssi_signal)
{
size_t i;
int ret = 0;
if (sa == NULL || ie == NULL)
return -1;
random_add_randomness(sa, ETH_ALEN);
for (i = 0; hapd->probereq_cb && i < hapd->num_probereq_cb; i++) {
if (hapd->probereq_cb[i].cb(hapd->probereq_cb[i].ctx,
sa, da, bssid, ie, ie_len,
ssi_signal) > 0) {
ret = 1;
break;
}
}
return ret;
}
#ifdef HOSTAPD
#ifdef CONFIG_IEEE80211R
static void hostapd_notify_auth_ft_finish(void *ctx, const u8 *dst,
const u8 *bssid,
u16 auth_transaction, u16 status,
const u8 *ies, size_t ies_len)
{
struct hostapd_data *hapd = ctx;
struct sta_info *sta;
sta = ap_get_sta(hapd, dst);
if (sta == NULL)
return;
hostapd_logger(hapd, dst, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_DEBUG, "authentication OK (FT)");
sta->flags |= WLAN_STA_AUTH;
hostapd_sta_auth(hapd, dst, auth_transaction, status, ies, ies_len);
}
#endif /* CONFIG_IEEE80211R */
static void hostapd_notif_auth(struct hostapd_data *hapd,
struct auth_info *rx_auth)
{
struct sta_info *sta;
u16 status = WLAN_STATUS_SUCCESS;
u8 resp_ies[2 + WLAN_AUTH_CHALLENGE_LEN];
size_t resp_ies_len = 0;
sta = ap_get_sta(hapd, rx_auth->peer);
if (!sta) {
sta = ap_sta_add(hapd, rx_auth->peer);
if (sta == NULL) {
status = WLAN_STATUS_UNSPECIFIED_FAILURE;
goto fail;
}
}
sta->flags &= ~WLAN_STA_PREAUTH;
ieee802_1x_notify_pre_auth(sta->eapol_sm, 0);
#ifdef CONFIG_IEEE80211R
if (rx_auth->auth_type == WLAN_AUTH_FT && hapd->wpa_auth) {
sta->auth_alg = WLAN_AUTH_FT;
if (sta->wpa_sm == NULL)
sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth,
sta->addr);
if (sta->wpa_sm == NULL) {
wpa_printf(MSG_DEBUG, "FT: Failed to initialize WPA "
"state machine");
status = WLAN_STATUS_UNSPECIFIED_FAILURE;
goto fail;
}
wpa_ft_process_auth(sta->wpa_sm, rx_auth->bssid,
rx_auth->auth_transaction, rx_auth->ies,
rx_auth->ies_len,
hostapd_notify_auth_ft_finish, hapd);
return;
}
#endif /* CONFIG_IEEE80211R */
fail:
hostapd_sta_auth(hapd, rx_auth->peer, rx_auth->auth_transaction + 1,
status, resp_ies, resp_ies_len);
}
static void hostapd_action_rx(struct hostapd_data *hapd,
struct rx_action *action)
{
struct sta_info *sta;
wpa_printf(MSG_DEBUG, "RX_ACTION cat %d action plen %d",
action->category, (int) action->len);
sta = ap_get_sta(hapd, action->sa);
if (sta == NULL) {
wpa_printf(MSG_DEBUG, "%s: station not found", __func__);
return;
}
#ifdef CONFIG_IEEE80211R
if (action->category == WLAN_ACTION_FT) {
wpa_printf(MSG_DEBUG, "%s: FT_ACTION length %d",
__func__, (int) action->len);
wpa_ft_action_rx(sta->wpa_sm, action->data, action->len);
}
#endif /* CONFIG_IEEE80211R */
#ifdef CONFIG_IEEE80211W
if (action->category == WLAN_ACTION_SA_QUERY && action->len >= 4) {
wpa_printf(MSG_DEBUG, "%s: SA_QUERY_ACTION length %d",
__func__, (int) action->len);
ieee802_11_sa_query_action(hapd, action->sa,
*(action->data + 1),
action->data + 2);
}
#endif /* CONFIG_IEEE80211W */
#ifdef CONFIG_WNM
if (action->category == WLAN_ACTION_WNM) {
wpa_printf(MSG_DEBUG, "%s: WNM_ACTION length %d",
__func__, (int) action->len);
ieee802_11_rx_wnm_action_ap(hapd, action);
}
#endif /* CONFIG_WNM */
}
#ifdef NEED_AP_MLME
#define HAPD_BROADCAST ((struct hostapd_data *) -1)
static struct hostapd_data * get_hapd_bssid(struct hostapd_iface *iface,
const u8 *bssid)
{
size_t i;
if (bssid == NULL)
return NULL;
if (bssid[0] == 0xff && bssid[1] == 0xff && bssid[2] == 0xff &&
bssid[3] == 0xff && bssid[4] == 0xff && bssid[5] == 0xff)
return HAPD_BROADCAST;
for (i = 0; i < iface->num_bss; i++) {
if (os_memcmp(bssid, iface->bss[i]->own_addr, ETH_ALEN) == 0)
return iface->bss[i];
}
return NULL;
}
static void hostapd_rx_from_unknown_sta(struct hostapd_data *hapd,
const u8 *bssid, const u8 *addr,
int wds)
{
hapd = get_hapd_bssid(hapd->iface, bssid);
if (hapd == NULL || hapd == HAPD_BROADCAST)
return;
ieee802_11_rx_from_unknown(hapd, addr, wds);
}
static void hostapd_mgmt_rx(struct hostapd_data *hapd, struct rx_mgmt *rx_mgmt)
{
struct hostapd_iface *iface = hapd->iface;
const struct ieee80211_hdr *hdr;
const u8 *bssid;
struct hostapd_frame_info fi;
hdr = (const struct ieee80211_hdr *) rx_mgmt->frame;
bssid = get_hdr_bssid(hdr, rx_mgmt->frame_len);
if (bssid == NULL)
return;
hapd = get_hapd_bssid(iface, bssid);
if (hapd == NULL) {
u16 fc;
fc = le_to_host16(hdr->frame_control);
/*
* Drop frames to unknown BSSIDs except for Beacon frames which
* could be used to update neighbor information.
*/
if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_BEACON)
hapd = iface->bss[0];
else
return;
}
os_memset(&fi, 0, sizeof(fi));
fi.datarate = rx_mgmt->datarate;
fi.ssi_signal = rx_mgmt->ssi_signal;
if (hapd == HAPD_BROADCAST) {
size_t i;
for (i = 0; i < iface->num_bss; i++)
ieee802_11_mgmt(iface->bss[i], rx_mgmt->frame,
rx_mgmt->frame_len, &fi);
} else
ieee802_11_mgmt(hapd, rx_mgmt->frame, rx_mgmt->frame_len, &fi);
random_add_randomness(&fi, sizeof(fi));
}
static void hostapd_rx_action(struct hostapd_data *hapd,
struct rx_action *rx_action)
{
struct rx_mgmt rx_mgmt;
u8 *buf;
struct ieee80211_hdr *hdr;
wpa_printf(MSG_DEBUG, "EVENT_RX_ACTION DA=" MACSTR " SA=" MACSTR
" BSSID=" MACSTR " category=%u",
MAC2STR(rx_action->da), MAC2STR(rx_action->sa),
MAC2STR(rx_action->bssid), rx_action->category);
wpa_hexdump(MSG_MSGDUMP, "Received action frame contents",
rx_action->data, rx_action->len);
buf = os_zalloc(24 + 1 + rx_action->len);
if (buf == NULL)
return;
hdr = (struct ieee80211_hdr *) buf;
hdr->frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
WLAN_FC_STYPE_ACTION);
if (rx_action->category == WLAN_ACTION_SA_QUERY) {
/*
* Assume frame was protected; it would have been dropped if
* not.
*/
hdr->frame_control |= host_to_le16(WLAN_FC_ISWEP);
}
os_memcpy(hdr->addr1, rx_action->da, ETH_ALEN);
os_memcpy(hdr->addr2, rx_action->sa, ETH_ALEN);
os_memcpy(hdr->addr3, rx_action->bssid, ETH_ALEN);
buf[24] = rx_action->category;
os_memcpy(buf + 24 + 1, rx_action->data, rx_action->len);
os_memset(&rx_mgmt, 0, sizeof(rx_mgmt));
rx_mgmt.frame = buf;
rx_mgmt.frame_len = 24 + 1 + rx_action->len;
hostapd_mgmt_rx(hapd, &rx_mgmt);
os_free(buf);
}
static void hostapd_mgmt_tx_cb(struct hostapd_data *hapd, const u8 *buf,
size_t len, u16 stype, int ok)
{
struct ieee80211_hdr *hdr;
hdr = (struct ieee80211_hdr *) buf;
hapd = get_hapd_bssid(hapd->iface, get_hdr_bssid(hdr, len));
if (hapd == NULL || hapd == HAPD_BROADCAST)
return;
ieee802_11_mgmt_cb(hapd, buf, len, stype, ok);
}
#endif /* NEED_AP_MLME */
static int hostapd_event_new_sta(struct hostapd_data *hapd, const u8 *addr)
{
struct sta_info *sta = ap_get_sta(hapd, addr);
if (sta)
return 0;
wpa_printf(MSG_DEBUG, "Data frame from unknown STA " MACSTR
" - adding a new STA", MAC2STR(addr));
sta = ap_sta_add(hapd, addr);
if (sta) {
hostapd_new_assoc_sta(hapd, sta, 0);
} else {
wpa_printf(MSG_DEBUG, "Failed to add STA entry for " MACSTR,
MAC2STR(addr));
return -1;
}
return 0;
}
static void hostapd_event_eapol_rx(struct hostapd_data *hapd, const u8 *src,
const u8 *data, size_t data_len)
{
struct hostapd_iface *iface = hapd->iface;
struct sta_info *sta;
size_t j;
for (j = 0; j < iface->num_bss; j++) {
if ((sta = ap_get_sta(iface->bss[j], src))) {
if (sta->flags & WLAN_STA_ASSOC) {
hapd = iface->bss[j];
break;
}
}
}
ieee802_1x_receive(hapd, src, data, data_len);
}
void wpa_supplicant_event(void *ctx, enum wpa_event_type event,
union wpa_event_data *data)
{
struct hostapd_data *hapd = ctx;
#ifndef CONFIG_NO_STDOUT_DEBUG
int level = MSG_DEBUG;
if (event == EVENT_RX_MGMT && data->rx_mgmt.frame &&
data->rx_mgmt.frame_len >= 24) {
const struct ieee80211_hdr *hdr;
u16 fc;
hdr = (const struct ieee80211_hdr *) data->rx_mgmt.frame;
fc = le_to_host16(hdr->frame_control);
if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_BEACON)
level = MSG_EXCESSIVE;
}
wpa_dbg(hapd->msg_ctx, level, "Event %s (%d) received",
event_to_string(event), event);
#endif /* CONFIG_NO_STDOUT_DEBUG */
switch (event) {
case EVENT_MICHAEL_MIC_FAILURE:
michael_mic_failure(hapd, data->michael_mic_failure.src, 1);
break;
case EVENT_SCAN_RESULTS:
if (hapd->iface->scan_cb)
hapd->iface->scan_cb(hapd->iface);
break;
#ifdef CONFIG_IEEE80211R
case EVENT_FT_RRB_RX:
wpa_ft_rrb_rx(hapd->wpa_auth, data->ft_rrb_rx.src,
data->ft_rrb_rx.data, data->ft_rrb_rx.data_len);
break;
#endif /* CONFIG_IEEE80211R */
case EVENT_WPS_BUTTON_PUSHED:
hostapd_wps_button_pushed(hapd, NULL);
break;
#ifdef NEED_AP_MLME
case EVENT_TX_STATUS:
switch (data->tx_status.type) {
case WLAN_FC_TYPE_MGMT:
hostapd_mgmt_tx_cb(hapd, data->tx_status.data,
data->tx_status.data_len,
data->tx_status.stype,
data->tx_status.ack);
break;
case WLAN_FC_TYPE_DATA:
hostapd_tx_status(hapd, data->tx_status.dst,
data->tx_status.data,
data->tx_status.data_len,
data->tx_status.ack);
break;
}
break;
case EVENT_EAPOL_TX_STATUS:
hostapd_eapol_tx_status(hapd, data->eapol_tx_status.dst,
data->eapol_tx_status.data,
data->eapol_tx_status.data_len,
data->eapol_tx_status.ack);
break;
case EVENT_DRIVER_CLIENT_POLL_OK:
hostapd_client_poll_ok(hapd, data->client_poll.addr);
break;
case EVENT_RX_FROM_UNKNOWN:
hostapd_rx_from_unknown_sta(hapd, data->rx_from_unknown.bssid,
data->rx_from_unknown.addr,
data->rx_from_unknown.wds);
break;
case EVENT_RX_MGMT:
hostapd_mgmt_rx(hapd, &data->rx_mgmt);
break;
#endif /* NEED_AP_MLME */
case EVENT_RX_PROBE_REQ:
if (data->rx_probe_req.sa == NULL ||
data->rx_probe_req.ie == NULL)
break;
hostapd_probe_req_rx(hapd, data->rx_probe_req.sa,
data->rx_probe_req.da,
data->rx_probe_req.bssid,
data->rx_probe_req.ie,
data->rx_probe_req.ie_len,
data->rx_probe_req.ssi_signal);
break;
case EVENT_NEW_STA:
hostapd_event_new_sta(hapd, data->new_sta.addr);
break;
case EVENT_EAPOL_RX:
hostapd_event_eapol_rx(hapd, data->eapol_rx.src,
data->eapol_rx.data,
data->eapol_rx.data_len);
break;
case EVENT_ASSOC:
hostapd_notif_assoc(hapd, data->assoc_info.addr,
data->assoc_info.req_ies,
data->assoc_info.req_ies_len,
data->assoc_info.reassoc);
break;
case EVENT_DISASSOC:
if (data)
hostapd_notif_disassoc(hapd, data->disassoc_info.addr);
break;
case EVENT_DEAUTH:
if (data)
hostapd_notif_disassoc(hapd, data->deauth_info.addr);
break;
case EVENT_STATION_LOW_ACK:
if (!data)
break;
hostapd_event_sta_low_ack(hapd, data->low_ack.addr);
break;
case EVENT_RX_ACTION:
if (data->rx_action.da == NULL || data->rx_action.sa == NULL ||
data->rx_action.bssid == NULL)
break;
#ifdef NEED_AP_MLME
hostapd_rx_action(hapd, &data->rx_action);
#endif /* NEED_AP_MLME */
hostapd_action_rx(hapd, &data->rx_action);
break;
case EVENT_AUTH:
hostapd_notif_auth(hapd, &data->auth);
break;
case EVENT_CH_SWITCH:
if (!data)
break;
hostapd_event_ch_switch(hapd, data->ch_switch.freq,
data->ch_switch.ht_enabled,
data->ch_switch.ch_offset);
break;
case EVENT_REQ_CH_SW:
if (!data)
break;
ieee802_11_start_channel_switch(hapd, data->ch_switch.freq,
FALSE);
default:
wpa_printf(MSG_DEBUG, "Unknown event %d", event);
break;
}
}
#endif /* HOSTAPD */